Home teams stand strong
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The opening games in the 50th Copa Libertadores de America produced a glut of goals and just one away win, Nacional of Paraguay's surprise five-star showing in Ecuador. FIFA.com tells the story of that game and rounds up all the other Copa news, including comfortable wins for Independiente Medellin and Palmeiras.

Game of the week
Independiente Medellin 4-0 Penarol
Scorers: Jackson Martinez 15, 18 and 46, Ivan Corredor 34

Uruguayan giants Penarol may have won the Copa Libertadores five times, but their much-publicised return to the competition failed to unnerve their hosts. The Colombians produced some probing, intelligent football and made the most of the chances that came their way to take control of the tie. With a second leg in Montevideo still to come, Independiente are now massive favourites to proceed, but still need to remain watchful against a side that has pulled off many an unlikely deed in the past.

Surprise of the week
El Nacional (ECU) 0-5 Nacional (PAR)
Scorers: Raul Roman 51, Jorge Nunez 56 and 86, Ramon Caceres 71, Marcos Melgarejo 89

Not even the most optimistic of Nacional fans could have predicted their heroes would come away from a daunting trip to Quito with a five-goal triumph. Making the result even more surprising was the fact both sides looked evenly matched throughout a close opening 45 minutes. Ecuadorian heads dropped after Roman's opening goal, however, allowing the Paraguayans to virtually seal their place in the next round.

Elsewhere
Universidad de Chile achieved their basic objectives when they entertained Pachuca in Santiago on Wednesday, grabbing a lead to take with them to Mexico and preventing the visitors from snatching an away goal. The question is, will Marcelo Diaz's solitary strike be enough for them to advance to the group phase? Judging by their record it could be. In their previous Copa trip to Mexico, the U managed to avoid defeat.

Sporting Cristal took a tentative step towards the group phase when they deservedly beat Argentina's Estudiantes 2-1 in Lima. The men from La Plata struck first through Enzo Perez, but the hosts hit back through the ageless Roberto Palacios and Hector Hurtado.

Palmeiras made short work of Bolivian hopefuls Real Potosi in Sao Paulo on Thursday. Keirrison scored twice as they romped to a 5-1 win, with gifted playmaker Clayton Xavier and the recently returned Edmilson also getting on the scoresheet.

In the final game of the week, Venezuelan new boys Deportivo Anzoategui fulfilled their wildest dreams when they downed Deportivo Cuenca 2-0 at home. Edgar Espindola and Jhonny Gonzalez were the heroes of the night, scoring either side of half-time to secure a famous win.

Player of the week
Jackson Martinez (Independiente Medellin)
The 22-year-old Colombian striker had a night to remember against Penarol, scoring three of his side's four goals. The rest of the Libertadores field has been warned.

The stat
12 -
The number of goals Roberto Palacios has scored for Sporting Cristal in the Copa Libertadores. The veteran midfielder, who began his career with the Lima club, received a standing ovation when he left the field against Estudiantes.

What they said
"Independiente didn't catch us by surprise at all. They were just better than us and they fully deserved the win. It's very difficult to plan a game when the other team scores four goals from dead-ball situations," Penarol coach Julio Ribas.

This week's results

Tuesday 27
El Nacional (ECU) 0-5 Nacional (PAR)

Wednesday 28
Independiente Medellin (COL) 4-0 Penarol (URU)
Universidad de Chile (CHI) 1-0 Pachuca (MEX)

Thursday 29
Sporting Cristal (PER) 2-1 Estudiantes (ARG)
Palmeiras (BRA) 5-1 Real Potosi (BOL)
Deportivo Anzoategui (VEN) 2-0 Deportivo Cuenca (ECU)